Isabel Segunda, Puerto Rico Weather

Isabel Segunda1:04 PM AST18.15°N, 65.44°WElevation 39 ft

Current conditions

Scattered Rain Showers
85°
Scattered Rain Showers
Feels like 94°
High 85°·Low 82°
WindESE 15 mph gusts 21 mph
Humidity75%
Dew point76°
Cloud cover70%
UV index9 Very high
Sunrise6:18 AM
Sunset5:55 PM

Forecast for this hour (no station report in the last two hours)

Forecast

10-day

  • Friday

    A chance of showers and thunderstorms. Mostly cloudy, with a high near 85. East southeast wind 12 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

  • Friday Night

    Scattered rain showers. Mostly cloudy, with a low around 82. East southeast wind around 21 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.

  • Saturday

    A chance of rain showers. Partly sunny, with a high near 85. East southeast wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

National Weather Service forecast updated 2 days ago.

Hourly

Hourly forecast
  1. Now Scattered Rain Showers 85°50%
  2. 2 PM Scattered Rain Showers 85°50%
  3. 3 PM Scattered Rain Showers 85°50%
  4. 4 PM Scattered Rain Showers 84°50%
  5. 5 PM Scattered Rain Showers 84°50%
  6. 6 PM Scattered Rain Showers 83°50%
  7. 7 PM Scattered Rain Showers 83°50%
  8. 8 PM Scattered Rain Showers 83°50%
  9. 9 PM Scattered Rain Showers 83°50%
  10. 10 PM Scattered Rain Showers 83°50%
  11. 11 PM Scattered Rain Showers 83°50%
  12. Sat12 AM Scattered Rain Showers 82°50%
  13. 1 AM Scattered Rain Showers 82°50%
  14. 2 AM Scattered Rain Showers 82°50%
  15. 3 AM Scattered Rain Showers 82°50%
  16. 4 AM Scattered Rain Showers 82°50%
  17. 5 AM Scattered Rain Showers 82°50%
  18. 6 AM Chance Rain Showers 82°60%
  19. 7 AM Chance Rain Showers 83°60%
  20. 8 AM Chance Rain Showers 84°60%
  21. 9 AM Chance Rain Showers 84°60%
  22. 10 AM Chance Rain Showers 84°60%
  23. 11 AM Chance Rain Showers 85°60%
  24. 12 PM Scattered Rain Showers 85°30%

10-day forecast

Details
  1. TonightOct 20 Scattered Rain Showers Scattered Rain Showers40%82°
  2. WedOct 21 Scattered Rain Showers Scattered Rain Showers50%82°85°
  3. ThuOct 22 Scattered Showers And Thunderstorms Scattered Showers And Thunderstorms50%82°85°
  4. TodayOct 23 Chance Showers And Thunderstorms Chance Showers And Thunderstorms60%82°85°
  5. SatOct 24 Chance Rain Showers Chance Rain Showers60%82°85°
  6. SunOct 25 Scattered Rain Showers Scattered Rain Showers50%82°85°
  7. MonOct 26 Scattered Rain Showers Scattered Rain Showers30%82°85°
  8. TueOct 27 Scattered Rain Showers then Mostly Sunny Scattered Rain Showers then Mostly Sunny30%85°
  9. WedOct 28 Partly cloudy Partly cloudy0.04 in80°85°
  10. ThuOct 29 Mostly sunny Mostly sunny0.04 in83°85°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
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Weather news

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Sun & moon

Sunrise 6:18 AM
Sunset 5:55 PM
Daylight 11 h 36 min (−0 min 57 s tomorrow)
Waxing Gibbous · 93% lit
Moonrise 4:03 PM Moonset 3:47 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Month to date8.09 in (normal 0.00 in)

Fajardo, records since 1931. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in SJU, issued 23 hrs ago

Key Messages

Issued at 158 PM AST Thu Oct 22 2026

- Seasonal to above-normal tropical moisture, combined with a southeasterly flow, will maintain a wetter pattern from this afternoon through Saturday. Heavy downpours may cause urban and small-stream flooding, rapid rises in river levels, and isolated flash flooding.

- This afternoon, the interior, north-central, and northwestern portions of Puerto Rico have the greatest potential for rainfall. Tonight, showers and thunderstorms are likely across the Caribbean waters and Mona Passage, with some activity potentially moving into southern and western Puerto Rico overnight.

- A northerly swell is expected to arrive late tonight into Friday, resulting in a high risk of rip currents along north- facing beaches beginning tomorrow and potentially continuing into early next week.

- Warm and humid conditions will persist, particularly during periods of sunshine. Heat impacts may become more pronounced early next week, especially along the coasts, in low-lying areas, interior valleys, and urban areas.

Aviation

(18Z TAFS) Issued at 158 PM AST Thu Oct 22 2026

Mainly VFR conds expected across PR and USVI terminals thru the evening, with ISOLD SHRA, resulting in VCSH mainly at TJBQ/TJSJ. Increasing moisture will favor more frequent SHRA/TSRA mainly across TJPS aft 23/03Z, with PROB30 TSRA and MVFR/IFR conds thru 23/14Z. Sfc winds mainly S-SE at 5-10 kt, bcmg L/V overnight, then 10-12 kt with higher gusts and sea-breeze variations.

Marine

Issued at 158 PM AST Thu Oct 22 2026

Light to gentle southeasterly winds will become east to southeast and increase from gentle to locally fresh Friday into the weekend as the pressure gradient tightens. A north-northwesterly swell is expected to arrive late tonight into early Friday, followed by additional pulses through the weekend. Seas will build to 5 to 6 feet across portions of the Atlantic waters and Mona Passage. Small craft operators should exercise caution. More frequent showers and thunderstorms, including nighttime activity, will bring lightning, gusty winds, reduced visibility, and locally higher seas.

Beach Forecast

Issued at 158 PM AST Thu Oct 22 2026

A northwesterly swell is expected to arrive late tonight into Friday, bringing back a high risk of rip currents along north- facing beaches of Puerto Rico, Culebra, and northern U.S. Virgin Islands. Hazardous swimming and beach conditions with breaking waves of around 6 to 7 feet are forecast. Additional swell pulses will likely maintain the high risk through the weekend and into early next week. Beachgoers are strongly urged to avoid entering the water at beaches under a high rip current risk. Heed all beach signs and instructions from lifeguards and local authorities. Also, shower and thunderstorm activity will bring lightning and gusty winds to coastal areas. If thunderstorms approach, leave the beach immediately and seek shelter.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.